Speaker
Description
Relativistic jets are an essential channel accreting SMBHs release feedback energy to the host galaxies. Observationally, the radio lobes inflated by AGN jets extend to megaparsec scales, far beyond the virial radii of the hosts to interact with nearby galaxies. Theoretically, the magnetic field within the radio lobes can impact the growth and the dynamical evolution of galaxies, especially in more overdense environments where multiple generations of jet feedback join efforts synergistically. We therefore use magneto-hydrodynamic cosmological simulations to explore the impact of radio jet feedback in overdense regions. By injecting magnetic jet feedback at cosmic noon around accreting SMBHs, we find that the baryon fraction is significantly reduced for halos <1e12 solar masses in their subsequent evolution. Additionally, jet feedback alone is capable of populating the intracluster environment with micro-Gauss level magnetic fields, providing an alternative channel, in addition to primordial origins, to generate intergalactic magnetic fields.
